The beauty of a tilt locking design is that it can be absolutely so tight at lock-up that you can not, by hand, move any of the components without tools. But once it moves just 1/8th of an inch out of battery it's completely loose and able to function with superb reliability.

The barrel on any properly made 1911 locks up EXACTLY the same way each time. It will have absolutely ZERO play anywhere in the upper half (the most critical). To argue you can lock up tighter than zero play is ludicrous... and that's exactly what you get with SA Custom, Brown, Les Baer, Wilson, etc.